EP4114715A1 - Vehicle with inclined connection between the front hinge pillar and the side rail - Google Patents
Vehicle with inclined connection between the front hinge pillar and the side railInfo
- Publication number
- EP4114715A1 EP4114715A1 EP21710545.1A EP21710545A EP4114715A1 EP 4114715 A1 EP4114715 A1 EP 4114715A1 EP 21710545 A EP21710545 A EP 21710545A EP 4114715 A1 EP4114715 A1 EP 4114715A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- intermediate part
- fixed
- lower intermediate
- cross member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 238000003466 welding Methods 0.000 claims description 11
- 210000001364 upper extremity Anatomy 0.000 claims description 3
- 230000001747 exhibiting effect Effects 0.000 abstract 2
- 230000002787 reinforcement Effects 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
- B62D25/025—Side sills thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
Definitions
- the present invention is in the field of motor vehicles, and relates in particular to the body structure of motor vehicles.
- the invention relates to a vehicle in which the connection between the front foot and the side spar is configured to delay the absorption of forces by the spar in the event of a side collision.
- the front and rear legs of a vehicle are uprights located forward or backward on the body side, between a wheel arch and a door opening.
- the feet have different geometries, specific to their location at the front or rear of the vehicle.
- a front foot can be made up of several structural parts assembled together by welding or riveting.
- a front foot can for example comprise an arrangement of parts welded together.
- the various parts thus assembled include a front reinforcement foot, an upper front foot gusset and a front reinforcement on the passenger compartment side.
- a third effort channel comprises the front reinforcement on the passenger compartment side, arranged on each side of the vehicle at the level of the wheel arch so as to transmit the forces received to the side members and to the bay uprights via the upper front pillar gussets and front foot reinforcements.
- the front foot reinforcements are devices located at the junction between the front foot and the spar of a vehicle. Their role is to strengthen the front foot in the event of a head-on collision.
- the reinforcement is generally an angled "L" shape. It comprises a cavity and assembly rabbets extending laterally around said cavity. Generally, it further comprises a jack support configured to hold in position a jack for lifting said vehicle when changing the adjacent wheel.
- the object of the invention is to provide a vehicle making it possible, during a frontal impact, to delay, and if possible prevent, the deformation of the passenger compartment following a backward movement of a front wheel in the event of frontal impact.
- the invention relates to a vehicle comprising on each of its lateral sides, a front wheel provided with a rim, a front foot and a lateral spar showing a front end, the vehicle is remarkable in that at least one front foot is fixed to the front end of a side member by means of a high intermediate part showing two ends and in that said high intermediate part is inclined so that its end fixed to the side member is disposed lower than its end fixed to the front foot.
- the front foot comprising a front foot reinforcement
- said upper intermediate piece is fixed to the front foot reinforcement of said front foot, for example to the lower end of the front foot reinforcement.
- the invention proposes to replace the usual square configuration shown by the junction between a front foot and a side spar by a configuration showing a link between the front foot and the side spar at an angle.
- This offers, among other things, the advantage of allowing a greater backward movement of the front wheel in the event of a front impact. Indeed, the wheel will first come into contact with the upper intermediate part which will deform and absorb part of the forces of the impact. In the kinematics of the collision and compared to a vehicle comprising a conventional connection (ie at right angles) between a front foot and a side spar, the wheel will therefore come into contact with the front end of the side spar later and with less time. 'efforts since part of the forces will have been absorbed by deformation of the upper intermediate part. Thus, the deformation of the passenger compartment cell is delayed, or even prevented, which makes the vehicle more efficient in terms of safety.
- the upper intermediate piece is oblique so that its end fixed to the side spar and its end fixed to the front foot are offset from one another along the transverse axis of the vehicle.
- the distance between the longitudinal median axis of the vehicle and the end of the upper intermediate part fixed to the front pillar is greater than the distance between the longitudinal median axis of the vehicle and the end of the upper intermediate part fixed to the front pillar. side spar.
- the upper intermediate part is a section in the form of a half-shell defining a cavity.
- the cavity of the upper intermediate part is at least partly bordered by assembly rebates.
- the front foot being made of steel
- the vehicle is remarkable in that the upper intermediate part is integral with the front foot; or in that the upper middle piece is of steel showing a different shade from the steel shade of the front leg.
- the upper end of the upper intermediate part is arranged at a height greater than or equal to the height shown by the top of the rim of the front wheel relative to the ground, or at a height between the center and the top of the front wheel rim relative to the ground.
- said upper intermediate piece is inclined at an angle of between 30 ° and 60 ° with the horizontal, said angle being open towards the front of the vehicle.
- the upper intermediate piece is fixed to the front end of the side spar by welding.
- the vehicle further comprising a front cross member extending in the transverse direction of the vehicle, the vehicle is remarkable in that it further comprises a lower intermediate part showing two ends and in that one of its ends is fixed to the front end of the side spar and one of its ends is fixed to said front cross member.
- the front cross member is therefore arranged lower than the side spar and in front of the latter.
- the lower intermediate part is inclined so that its end fixed to the side spar is disposed higher than its end fixed to the front cross member.
- the lower intermediate part is oblique so that its end fixed to the side member and its end fixed to the front cross member are offset with respect to each other along the transverse axis of the vehicle ; preferably, the distance between the longitudinal median axis of the vehicle and the end of the lower intermediate part fixed to the side spar is greater than the distance between the longitudinal median axis of the vehicle and the end of the lower intermediate part fixed to the front cross member.
- the front cross member being made of steel;
- the lower middle piece is a steel showing a different shade than the steel shade of the front crossmember.
- the lower end of the lower intermediate piece is arranged at a height less than or equal to the height shown by the center of the rim of the front wheel relative to the ground.
- said lower intermediate piece is inclined at an angle of between 120 ° and 150 ° with the horizontal, said angle being open towards the front of the vehicle.
- the lower intermediate piece is fixed to the front end of the side member by welding.
- the lower intermediate part is a section in the form of a half-shell defining a cavity; preferably, the cavity of the intermediate piece is at least partly bordered by assembly rebates.
- one end of the upper intermediate part, one end of the lower intermediate part and the front end of the side spar are superimposed at their fixing zone.
- the end of the upper intermediate part and / or of the lower intermediate part superimposed on the end of the side spar is devoid of assembly rebates.
- Figure 1 is a schematic view of the front part of a vehicle structure according to the invention, the vehicle being seen from one of its lateral sides.
- the term “include” is synonymous with “include” and is not limiting in that it allows the presence of other elements or shapes in the seal or the vehicle to which it relates. It is understood that the term “include” includes the terms “consist of”. Likewise, the terms “inferior”, “ upper ”,“ up ”and“ down ”will be understood according to their usual definition, in which the terms“ lower ”and“ lower ”indicate a greater proximity to the ground in the vertical direction than respectively the terms“ upper ”and“ high “. The terms “longitudinal”, transverse ”,“ front ”and“ rear ”will be understood in relation to the general orientation of the vehicle as taken in its normal direction of travel. The unit of measurement MPa corresponds to “Mega Pascals”.
- Figure 1 schematically shows one of the sides of a vehicle comprising front wheels 1 provided with rims 3, front feet 5 and side members 7 showing a front end.
- FIG. 1 Only one side is shown in Figure 1, the invention can be applied to only one side of the vehicle; it is preferentially applied to both sides of the vehicle.
- at least one front foot 5 is fixed to the front end of a side spar 7 by means of a high intermediate part 9 showing two ends.
- the upper intermediate part 9 is inclined so that its end fixed to the side member 7 is placed lower than its end fixed to the front foot 5. This configuration allows the wheel to retreat which is greater than in the case of a conventional angle configuration in which the front foot is fixed at a right angle to the front end of the side spar.
- the upper intermediate part 9 can be an added part, an extension of the front foot 5 or an extension of the side spar 7.
- the upper intermediate piece is an extension of the front foot
- the front foot and the upper intermediate piece are one.
- the upper intermediate piece is therefore integral with said front foot, shows the same thickness and is made in the same grade of steel as the front foot.
- the upper intermediate part is an extension of the side spar
- the side spar and the upper intermediate part are one.
- the upper intermediate part is therefore integral with said side spar, shows the same thickness and is made in the same grade of steel as the side spar.
- the upper intermediate part 9 can be made in the same steel or in a different steel grade from the steel of which the spar is made. side 7 or the front foot 5.
- the upper intermediate part 9 can be made of ultra-high elastic limit steel having, after hot stamping, a mechanical resistance Rm of at least. at least 1200 MPa as measured according to ISO 6892-1: 2016 and an elongation at break of at least 3% as measured according to ISO 6892-1: 2016.
- the upper intermediate part 9 may be made from a sheet showing the same thickness as the sheet from which the front foot 5 or the side spar 7 is made. According to one embodiment, it is made from a sheet showing a thickness greater than the length. thickness of the sheet from which the front foot 5 is formed; for example, at least 1.1 times its thickness, or even at least 1.5 times its thickness.
- the presence of the upper intermediate part 9 also makes it possible to produce vehicles in which the front foot 5 and the side spar 7 are not aligned in the transverse direction of the vehicle.
- the upper intermediate part 9 is oblique so that its end fixed to the side member 7 and its end fixed to the front foot 5 are offset from one another along the transverse axis of the vehicle.
- the distance between the longitudinal median axis of the vehicle and the end of the upper intermediate part 9 fixed to the front foot 5 is greater than the distance between the longitudinal median axis of the vehicle and the end of the upper intermediate part. 9 fixed to the side member 7.
- the distance between the longitudinal median axis of the vehicle and the end of the upper intermediate part 9 fixed to the front pillar 5 is less than the distance between the longitudinal median axis of the vehicle and the end of the upper intermediate part 9 fixed to the side spar 7.
- the front foot 5 and the side spar 7 are aligned along the longitudinal axis of the vehicle so that the distance between the longitudinal median axis of the vehicle and the end of the upper intermediate part 9 fixed to the front pillar 5 is equal to the distance between the longitudinal median axis l of the vehicle and the end of the upper intermediate part 9 fixed to the side member 7.
- the upper intermediate part 9 is advantageously a section, for example a stamped.
- the upper intermediate part 9 is a section in the form of a half-shell defining a cavity, the cavity showing a bottom and side walls.
- the cavity of the upper intermediate part 9 is at least partly bordered by assembly rebates.
- the upper intermediate part 9 is fixed to the front foot 5 and / or to the front end of the side member 7 by any means, such as for example by riveting or by welding, such as by electric resistance spot welding. Welding can be done at the assembly rabbets and / or at its cavity.
- the upper intermediate part 9 is fixed to the side spar 7 and / or to the front foot 5 by a plurality of weld points connecting the bottom of its cavity to the bottom of the cavity of the side spar 7 and / or of the front foot 5, and / or at least one side wall of its cavity to at least one side wall of the cavity of the side spar 7 and / or of the front foot 5.
- the upper end of the upper intermediate piece 9 is arranged at a height greater than or equal to the height shown by the top of the rim 3 of the front wheel 1 relative to the ground. It goes without saying that the wheel in question is located on the same side of the vehicle.
- the upper end of the upper intermediate part 9 is arranged at a height between the center and the top of the rim of the front wheel relative to the ground.
- said upper intermediate part 9 is inclined at an angle of between 10 ° and 80 ° with the horizontal, said angle being open towards the front of the vehicle, preferably between 20 ° and 70 °, more preferably between 30 ° and 60 ° or even between 40 ° and 50 °.
- the vehicle further comprises a front cross member 11 extending in the transverse direction of the vehicle.
- the vehicle is then remarkable in that it further comprises a low intermediate part 13 showing two ends and in that one of its ends is fixed to the front end of a side member 7 and one of its ends is fixed. to said front cross member 11.
- the lower intermediate part 13 is inclined so that its end fixed to the side member 7 is disposed higher than its end fixed to the cross member before 11.
- the front cross member 11 is advantageously arranged vertically to the front foot 5 as illustrated in Figure 1.
- Those skilled in the art may nevertheless consider placing the front cross member in front of the lower end of the front foot in the longitudinal direction of the vehicle or behind said lower end of the front leg.
- the joint presence of a high intermediate piece 9 and a lower intermediate piece 13 gives the assembly formed by the side spar 7 and the two upper 9 and lower intermediate pieces 13 a lying Y shape, open in the direction of the front wheel.
- Such a structure makes it possible to absorb the forces received during a frontal collision as quickly as possible, by deformation of the upper 9 and lower 13 intermediate parts while later stressing the front end of the lateral spar 7 since it ci is offset rearwardly with respect to more conventional L-shaped structures.
- the front cross member 11 can be fixed to the side spar 7 without being at the same height as it.
- the front cross member 11 is arranged lower than the side spar 7, that is to say that it has greater proximity to the ground in the vertical direction than the spar. side 7.
- the front cross member 11 is arranged in front of the front end of the side member 7.
- the lower intermediate part 13 can show the same characteristics as the upper intermediate part 9 or different characteristics.
- the lower intermediate part 13 can be an added part, an extension of the front cross member 11 or an extension of the side spar 7.
- the latter When the two lower 13 and upper 9 intermediate pieces are extensions of the side spar 7, the latter has a front end showing a Y shape open towards the front of the vehicle.
- the lower intermediate part 13 can be made in the same steel or in a different steel grade from the steel of which the spar is made. side 7 or the front cross member 11.
- the lower intermediate part 13 can be made of ultra-high elastic limit steel having, after hot stamping, a mechanical strength Rm of at least 1200 MPa as measured according to the ISO standard 6892-1: 2016 and an elongation at break of at least 3% as measured according to ISO 6892-1: 2016.
- it is made from a steel having a mechanical strength Rm of between 300 and 1150 MPa, the mechanical strength being measured according to the ISO 6892-1: 2016 standard.
- the same considerations regarding its thickness can be applied.
- it is made from a sheet having a thickness greater than the thickness of the sheet of which the side spar 7 is formed; for example, at least 1, 1 times its thickness, or even at least 1, 5 times its thickness.
- the lower intermediate part 13 is advantageously a section, for example a stamped.
- the lower intermediate part 13 is a section in the form of a half-shell defining a cavity, the cavity showing a bottom and side walls.
- the cavity of the lower intermediate part 13 is at least partly bordered by assembly rebates.
- the lower intermediate part 13 is fixed to the front cross member 11 and / or to the front end of the side spar 7 by any means, such as for example by riveting or by welding.
- the upper 9 and lower 13 intermediate pieces are both fixed by welding at the front end of the side member 7, so as to superimpose their respective cavities at a fixing zone 15, the those skilled in the art will have an advantage in favoring fixing by welding at the bottom of their cavities and / or at the level of the side walls of their cavity.
- the end of the upper intermediate part 9 and / or of the lower intermediate part 13 in its part superimposed on the end of the side spar 7 is devoid of assembly rebates. This configuration makes it possible to avoid the superposition of an excessively large number of assembly rebates, for example greater than three, at the level of the fixing zone 15.
- the lower intermediate part 13 is oblique so that its end fixed to the side spar 7 and its end fixed to the front cross member 11 are offset with respect to each other along the axis transverse of the vehicle.
- the distance between the longitudinal median axis of the vehicle and the end of the lower intermediate part 13 fixed to the lateral spar 7 is greater than the distance between the longitudinal median axis of the vehicle and the end of the lower intermediate part 13 fixed to the front cross member 11.
- the distance between the longitudinal median axis of the vehicle and the end of the lower intermediate part 13 fixed to the lateral spar 7 is greater than the distance between the median axis longitudinal part of the vehicle and the end of the low intermediate part 13 fixed to the front cross member 11.
- the lower end of the lower intermediate part 13 is arranged at a height less than or equal to the height shown by the center of the rim 3 of the front wheel 1 relative to the ground.
- said lower intermediate piece is inclined at an angle of between 100 and 170 ° with the horizontal, said angle being open towards the front of the vehicle; preferably between 110 ° and 160 °, more preferably between 120 ° and 150 ° or else between 130 ° and 140 °.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2002063A FR3107690B1 (en) | 2020-03-02 | 2020-03-02 | VEHICLE WITH ANGLED CONNECTION BETWEEN THE FRONT PILLAR AND THE SIDE BEAM |
PCT/FR2021/050292 WO2021176159A1 (en) | 2020-03-02 | 2021-02-18 | Vehicle with inclined connection between the front hinge pillar and the side rail |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4114715A1 true EP4114715A1 (en) | 2023-01-11 |
Family
ID=72266356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21710545.1A Pending EP4114715A1 (en) | 2020-03-02 | 2021-02-18 | Vehicle with inclined connection between the front hinge pillar and the side rail |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4114715A1 (en) |
FR (1) | FR3107690B1 (en) |
WO (1) | WO2021176159A1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1905049A1 (en) | 1968-02-16 | 1969-09-18 | Elitex Zd Y Textilniho Strojir | Process for the production of twisted yarn with two-for-one wire and two-for-one twisting spindle for carrying out this process |
SE500174C2 (en) * | 1992-09-11 | 1994-05-02 | Saab Automobile | Threshold reinforcement for reducing floor penetration in offset collisions with passenger cars |
FR2933059B1 (en) * | 2008-06-25 | 2010-12-24 | Peugeot Citroen Automobiles Sa | RIGIDIFICATION INSERT FOR AUTOMOTIVE VEHICLE BODY |
FR2993850B1 (en) * | 2012-07-27 | 2014-07-25 | Peugeot Citroen Automobiles Sa | AUTOMOTIVE VEHICLE CABIN SIDE, WITH THE LOWER PART INCLUDING A LONGERON REINFORCEMENT IN COMPOSITE MATERIAL |
JP5987800B2 (en) * | 2013-08-21 | 2016-09-07 | トヨタ自動車株式会社 | Body front structure |
US10077014B1 (en) * | 2017-03-20 | 2018-09-18 | GM Global Technology Operations LLC | Body-mounted tire blocker assembly |
-
2020
- 2020-03-02 FR FR2002063A patent/FR3107690B1/en active Active
-
2021
- 2021-02-18 WO PCT/FR2021/050292 patent/WO2021176159A1/en unknown
- 2021-02-18 EP EP21710545.1A patent/EP4114715A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR3107690A1 (en) | 2021-09-03 |
WO2021176159A1 (en) | 2021-09-10 |
FR3107690B1 (en) | 2022-07-29 |
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Owner name: STELLANTIS AUTO SAS |